Italian multicentricepidemiological case control strudy on risk factors for childhood leukemia,non hodgkin limphoma and neuroblastoma:study population and prevalence of risk factors in Italy

Background Aetiology of childhood leukaemia and childhood neoplasm is poorly understood. Information on the prevalence of risk factors in the childhood population is limited. SETIL is a population based case/control study on childhood leukaemia, conducted with two companion studies on non-Hodgkin Lymphoma (NHL) and neuroblastoma. The study relies on questionnaire interviews and 50 Hz magnetic field (ELF-MF) indoor measurements. This paper discusses the SETIL study design and includes descriptive information. Methods The study was carried out in 14 Italian regions (78.3% of Italian population aged 0?10). It included leukaemia, NHL and neuroblastoma cases incident in 0?10 year olds in 1998-20…